IPA: /ɪnˈɡroʊsɪŋ/
KK: /ɪnˈɡroʊsɪŋ/
Something that completely captures your attention and interest.
The movie was so engrossing that I forgot about everything else around me.
Comparative: more engrossing
Superlative: most engrossing
Engrossing → It is formed from "engross" (from Middle English *engrosser*, meaning to absorb or take up completely) and "-ing" (a suffix used to form present participles or adjectives). The word "engrossing" means something that completely absorbs one's attention or interest.
Think of something that 'absorbs' your attention completely — that's what 'engrossing' means.